Miller Machine Remotes FAQs
Foot, fingertip, hand and wireless controls, plus extension and adapter cords, for this maker's TIG power sources.
What is the difference between a current-and-contactor control and a contactor-only switch?
A current-and-contactor control, such as a foot pedal, fingertip control or hand control, does two jobs: it starts and stops the output and it varies the welding current. A contactor-only switch, for example a push-button or rocker switch fitted near the torch, only switches the output on and off. The current is then set on the machine's front panel.
Contactor-only switches suit repetitive tack welding or jobs where one current is used all the time. Choose a current-and-contactor control when you need to change heat as you weld. Some rocker switches have a maintained position, which latches the output on, as well as a momentary one.
Can I use an extension cable with my remote?
Usually yes, but only a cable made for the same type of control circuit. Maker accessory lists describe extension cables for remotes and low-voltage wire feeders using a specific plug and socket type, and they warn that some feeders with a higher control voltage must not be used with them. Check the cable's description against your machine's manual before connecting it.
Keep the run as short as the job allows and avoid joining several extensions end to end, as every joint is another place for a fault. Lay the cable clear of hot metal, sharp edges and walkways, and inspect it for damage before each use.
How do the remote and panel selector switches on the machine work?
Many TIG power sources have separate switches, or menu settings, that choose whether the output current and the output on/off are controlled from the front panel or from a remote. Maker manuals describe one switch for the current source and a second for the contactor. With no remote connected the contactor switch normally sits in the on position, and with a remote connected it is moved to the remote position.
If a newly fitted remote has no effect, these switches are the first thing to check. The labels differ between models, so follow the wording in your own manual.
How should I check my remote's cable and plug before use?
Before each use, with the equipment disconnected, look over the whole lead. The HSE's guidance on portable electrical equipment lists fraying, cuts or heavy scuffing, a damaged or loose plug, tape used to join leads, coloured wires visible where the cable enters the plug, and burn marks or staining as signs of trouble.
If you find any of these, take the remote out of use until a competent person has repaired it or it has been replaced. Do not carry on with a damaged lead. Pedals on a workshop floor take a lot of knocks, so check the cable where it leaves the pedal body as well as at the plug.